From: Bjorn Helgaas <helgaas@kernel.org>
To: Muni Sekhar <munisekharrms@gmail.com>
Cc: linux-pci@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
linux-kernel@vger.kernel.org,
Stephane Eranian <eranian@google.com>
Subject: Re: Test throughput on PCIe interface
Date: Fri, 22 Jul 2016 11:14:06 -0500 [thread overview]
Message-ID: <20160722161406.GC20646@localhost> (raw)
In-Reply-To: <CAHhAz+j4TK7s9FFqPow40Ve=ZHc+tv8-R8yvfgt5Qxe23PrgAQ@mail.gmail.com>
[+cc perf folks]
On Fri, Jul 22, 2016 at 05:59:51PM +0530, Muni Sekhar wrote:
> Hi All,
>
>
> We have xilinx PCIe endpoint with DMA reference block.
>
>
> The DMA-REF block provides a mechanism to DMA(also supports
> Scatter-Gather DMA) transfer data at the maximum rate between host
> (CPU) memory and a FIFO in the DMA-REF block.
>
>
> DMA-REF block provides the loopback. The intention is to use this
> block in production and self-test, to check that the PCIe bus is
> operating at the expected maximum transfer speed.
>
>
> Does kernel has any standard utilities to test throughput on PCIe interface?
I know some PCIe controllers devices do have performance monitors, and
perf might support some of them, but I don't know any details.
Bjorn
next prev parent reply other threads:[~2016-07-22 16:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-22 12:29 Test throughput on PCIe interface Muni Sekhar
2016-07-22 16:14 ` Bjorn Helgaas [this message]
2016-07-23 15:42 ` Muni Sekhar
2016-08-02 13:22 ` Peter Zijlstra
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